text: /**
  * @file simple_calc.h
  *
  */
  #ifndef __SIMPLE_CALC_H__
  #define __SIMPLE_CALC_H__
  
  /**
   * List of Operations for the Calculator
   */
  typedef enum
  {
  	CALC_OP_ADD,    ///< Addition of two integers
  	CALC_OP_SUB,    ///< Subtraction of 2nd integer from the 1st
  	CALC_OP_MAX
  } calc_op_e;
  
  // TODO : Introduce Overflow/Underflow/Other Error Detection
  // TODO : Introduce VA syntax
  
  /**
  * Computes the requested operation in the given input
  * @param[in] op Operation to be performed. One of #calc_op_e
  * @param[in] a 1st integer
  * @param[in] b 2nd integer
  * @return Result of performing the requested operation on the input
  */
  int simple_calc(calc_op_e op, int a, int b);
  
  #endif /* #ifndef __SIMPLE_CALC_H__ */
  